Emerson KTM Hindle Operation, Installation & Maintenance Instructions

KTM HINDLE ULTRA-SEAL BALL VALVES
OperatiOn, installatiOn and maintenance instructiOns
Before installation these instructions must be fully read and understood
1 STORAGE/SELECTION/PROTECTION
Ultra-Seal, free floating ball valves offer superior sealing downstream and to atmosphere, in both reduced and full bore designs.
Storage
Selection
Ensure that the materials of construction andpressure/temperature limits shown on thevalve identification label, are suitable for theprocess fluid and conditions. If in doubt, contact the factory.
Protection
KTM Hindle ball valves are delivered with protection according to customer’s specification, or in accordance with the Quality Assurance Manual, to protect the valve seats and ball from damage. Wrapping and/or covers should be left in place until immediately before fitting to thepipe.
2 INSTALLATION
1. Remove protective covers from valve faces.
2. Ensure that mating flanges and gaskets areclean and undamaged.
3. Fit the valve into pipework tightening theflange bolts in a diagonal pattern.
NOTE
a. KTM Hindle Ultra-Seal ball valves are bi-
directional as standard and may be fitted in either direction.
b. Installation may be carried out with stem displaced
through any angle permitted by the bolting.
c. For certain services (chlorine etc.) the valves
are designed to be uni-directional, in which case thevalve body will be labeled ‘High pressure side’ or ‘Flow direction’.
WARNING
For safety reasons, it is important to take the following precautions before you start work on the valve:
1. Personnel making any adjustments to thevalves should utilize equipment and clothing normally used to work with the process where the valve is installed.
2. The line must be depressurized before installing the valve.
3. Handling of all valves, operators and actuators must be carried out by personnel trained in allaspects of manual and mechanical handling techniques.
4. Valves on liquid service, which may be subjected to rapidly increasing temperature in the closed position, will need a positive means for relieving excessive cavity pressures. Forfurther information contact KTM Hindle.
3 ROUTINE MAINTENANCE AND OPERATIONAL SPARES
Scope
Standard Ultra-Seal ball valves both manual and actuated. For special service designs, typically cryogenic and fugitive emissions see separate instructions.
Routine maintenance
No routine maintenance is required other than periodic inspection to ensure satisfactory operation and sealing. Any sign of leakage from the gland packing should be addressed immediately by tightening the gland screws gradually and evenly. If no further adjustment is possible the packing should be renewed by following the instructions in paragraph 4.1.
Spare parts
KTM Hindle valves are identified by a figure number, which is stamped on the identification plate, located on the valve body flange. Thisreference should be quoted in respect of any after sales queries, spare parts or repair enquiries/orders.
Two year operational spares
Soft goods kits only, are recommended for thefirst two years of operation, as follows:
• 2 PTFE seat rings
• 1 sleeve seal
• 1 set of gland packing Our technical sales department on request will recommend the number of kits required. Metallic components are not normally replaced in the initial 2-year period. Any damage to metallic components such as stem or ball may necessitate replacement. Consult technical sales department for advice.
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VCIOM-01736-EN 15/06
KTM HINDLE ULTRA-SEAL BALL VALVES
OperatiOn, installatiOn and maintenance instructiOns
4 MAINTENANCE
CAUTION
Before attempting any maintenance, ensure the system has been fully depressurized and if necessary, drained of any dangerous fluids. Thevalve being removed should be operated at least once and left in the half open position before removal. Before disassembling the valve ensure the valve has been decontaminated correctly from any harmful gasses or fluids and that it is within a safe temperature range for handling. Personnel making any adjustments to the valves should utilize equipment and clothing normally used to work with the process where the valve is installed. Handling of all valves, operators and actuators must be carried out by personnel trained in all aspects of manual and mechanical handling techniques.
Parts identification
The illustrations on page 3 and 4 show the parts comprising the Series 110 and Series 200 valves.
4.1 Replacement of valve components
If no further adjustment of the gland is possible and stem leakage is still evident or seat leakage is suspected, the valve will need to be removed from the line in order for new seats/seals to be fitted. After removal of the valve, place the valve on a workbench with the sleeve end uppermost and adopt the following procedure to remove/replace the seats/seals:
Removal
Series 110 valves
1.
Remove sleeve (using sleeve extraction tool), sleeve seal and upper seat ring.
2. Remove ball.
3. Remove bottom seat ring.
4. Remove the operator (lever, gearbox, actuator) in accordance with instructions inparagraph 4.2.
5. Remove gland screws.
6. Remove stem nut and stop plate.
7. Remove gland spring and wiper seal.
8. Remove stem and thrust seal.
9. Remove graphite fire-seal/s.
Series 200 valves (Reduced bore)
1. Complete steps 1 - 4 of the above ­Series110 (torque multiplier will be needed for removal of sleeve on larger valves).
5. Remove stop plate.
6. Remove gland screws and gland.
7. Remove cover screws and cover.
8. Remove stem and thrust seal.
9. Remove cover gasket, gland spring, header, chevrons and spreader.
Series 200 valves (Full bore - 2 piece ball)
1. Remove the operator (as described below).
2. Complete sections 5 - 7 as above (Series 200 red.)
3. Pull stem out as far as possible, in order to disengage stem from ball.
4. Remove sleeve, sleeve seal and upper seatring.
5. Remove ball as follows:
Rotate the ball assembly inside the body,
sothat the locking ring is facing the valve end where the sleeve has been removed.
5.1. Drive off the locking ring
(as shown in Figure 1).
5.2. Remove each half of the ball from
thevalve using ‘T-bars’. The half without the bottom ball key must be removed first and when re-assembling insert last (Figure 2).
6. Remove bottom seat ring.
7. Remove stem from valve bore.
Refitting is the reversal of removal
Before refitting, ensure all sealing and metallic surfaces in seat pockets and stem seal bores are free from damage/corrosion. Minor defects can be polished using abrasive cloth. If major defects are found contact KTM Hindle’s service department for possible repair or component exchange.
4.2 Removal and refitting of operator
Removal
Handlever/’T’-bar
1. Remove the lever screw and lever washer.
2. Remove the handlever/’T’-bar.
Refitting is the reversal of removal.
Removal
Gearbox/actuator
1. Remove mounting bracket screws.
2. Remove mounting bracket and gearbox/actuator.
3. Remove drive adaptor screw (Series 110 only).
4. Remove drive adaptor.
Refitting is the reversal of removal.
4.3 Setting of travel stops on gearbox and
actuated operators
(See Figure 3 for diagram of travel stop positions)
(a) With valve out of pipeline
1. Close valve fully
2. Remove plastic indicator cover from top ofgearbox
3. Release closed stop screw.
4. Align diamond shaped drive points parallel to valve bore (Figure 4).
5. Tighten closed stop screw, allowing for backlash between adaptor and stem.
6. Hold stop screw in position with Allen key and tighten locking nut.
7. Open valve fully.
8. Visibly check that ball port is aligned with valve bore. If incorrect follow rest of procedure.
9. Release open stop screw.
10. Adjust ball position using handwheel until valve is porting correctly.
11. Tighten open stop screw and lock off with locknut.
(b) With valve in pipeline
Adopt steps 1 - 6 as above for open and closed positions.
NOTE
For the setting of stops on actuators, see separate instructions.
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